MAX811REUS

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MAX811REUS

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IC SUPERVISOR 1 CHANNEL SOT23-4

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Thông số kỹ thuật

thuộc tính Giá trị
Package Bulk
ProductStatus Active
Type Simple Reset/Power-On Reset
NumberofVoltagesMonitored 1
Voltage-Threshold 2.63V
Output Push-Pull, Totem Pole
Reset Active Low
ResetTimeout 140ms Minimum
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case TO-253-4, TO-253AA

Tổng quan

Description

The MAX811REUS is a microprocessor supervisory circuit designed to monitor the power supply voltage in digital systems and provide a reset signal to the microprocessor during power-up, power-down, and brownout conditions. It ensures reliable system operation by preventing erratic behavior during voltage fluctuations. This device is part of the MAX811/MAX812 series, which are known for their low power consumption and precision voltage monitoring.
Key features of the MAX811REUS include a reset threshold voltage of 4.63V, an active-low reset output, and a push-pull output stage. It is designed to provide a reset signal when the monitored voltage drops below the threshold, signaling the microprocessor to reset and return to a known state. This is crucial for applications where consistent and reliable system performance is necessary, such as in embedded systems, automotive electronics, and industrial control systems.
The MAX811REUS comes in a small SOT-143 package, making it suitable for space-constrained applications. Its simplicity and effectiveness make it a popular choice for ensuring system stability and reliability.

Equivalent

The MAX811REUS is a microprocessor reset circuit. Equivalent products include:
1. MCP130T-450I/TT from Microchip
2. TPS3839K33DBVR from Texas Instruments
3. ADM811RART from Analog Devices
4. STM706R from STMicroelectronics
These alternatives offer similar functionality, typically including a reset function triggered by falling power supply voltages. Always verify specifications like voltage thresholds and timing characteristics to ensure compatibility with your application.

Features

The MAX811REUS is a microprocessor supervisory circuit designed to monitor the power supply voltage in microprocessor systems. Key features include:
1. Reset Functionality: It provides a reset output to ensure the microprocessor comes out of reset in a known state when power is applied or when the supply voltage falls below a preset threshold.
2. Voltage Monitoring: It monitors the supply voltage and triggers a reset when it falls below a specified level.
3. Reset Timeout: The device features a fixed reset timeout period, typically around 140ms, ensuring the system has enough time to stabilize before resuming operations after a reset.
4. Low Supply Current: It operates with minimal power consumption, ideal for battery-powered applications.
5. Manual Reset Capability: Includes a manual reset input, allowing for an external push-button or control signal to trigger a reset.
6. Small Package: The MAX811REUS is available in a small, surface-mount SOT-143 package, making it suitable for space-constrained applications.
These features make the MAX811REUS ideal for ensuring reliable performance in embedded systems by protecting against power supply disruptions.

Pinout

The MAX811REUS is a microprocessor supervisory circuit designed to monitor the supply voltage and provide a reset signal to a microprocessor when necessary. It typically comes in a small SOT-143 package and has a 4-pin count. The primary function of this device is to ensure reliable operation of microprocessor systems by monitoring the power supply voltage and asserting a reset signal whenever the voltage drops below a specified threshold, ensuring the microprocessor operates correctly.
The pins are generally assigned as follows:
1. GND - Ground connection.
2. VCC - Power supply voltage input.
3. RESET - Active-low reset output, which triggers when VCC falls below the specified threshold.
4. N.C. (No Connection) - Typically not connected to the internal circuitry.
This setup helps maintain proper system startup and shutdown protocols, preventing undefined states in microprocessor operations.

Manufacturer

The MAX811REUS is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated was known for designing and manufacturing analog and mixed-signal integrated circuits. The company specialized in creating solutions for a wide range of applications, including power management, interface, and communication systems. After the acquisition, Analog Devices, Inc. continues to provide these products and solutions, integrating Maxim's offerings into its broader portfolio. Analog Devices is a leading semiconductor company that focuses on high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits, serving industries such as industrial, automotive, consumer electronics, healthcare, and communications.

Application

The MAX811REUS is a microprocessor supervisory circuit commonly used in applications that require monitoring and control of power supplies. Key application areas include:
1. Embedded Systems: To ensure microcontrollers operate within specified voltage limits and to provide reset signals during power-up, power-down, or brownout conditions.
2. Consumer Electronics: Monitoring battery voltage and ensuring stable operation in devices like smartphones and tablets.
3. Industrial Equipment: Provides protection and control in automation systems and controls.
4. Computing Systems: Ensures proper booting and system stability in computers and servers.
5. Automotive Electronics: Used in ECUs and infotainment systems to monitor supply voltages.
These applications benefit from the MAX811REUS’s compact size, low power consumption, and reliability.

Package

The MAX811REUS is typically available in a SOT-143 package type.

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